I realise this might be an easier question to ask in the Gnome forums but I'm already registered here so I'll ask. Does anyone know how one can easily backup Gnome preferences such as theme details, panel layout, splash images, etc.

The reason for this is that I'm kind of in a migration state and am formatting quite frequently. However, I don't have any important files requiring backup but I don't want to spend hours attempting to make Gnome look how it was.